Polarization and pitch dependence of cholesteric blue-phase structures

doi:10.1016/0375-9601(81)90199-7

Physics Letters A

Volume 82, Issue 5, 30 March 1981, Pages 247-250

https://doi.org/10.1016/0375-9601(81)90199-7 Get rights and content

Abstract

For cholesteric mixtures of two biphenyl liquid crystals, we show: (1) The BPI-BPII wavelength gap vanishes discontinously with pitch, thereby suggesting two possible BPII structures. (2) The Bragg reflections are all circularly polarized, contrary to existing theories. The temperature dependence of the BPI-BPIIA wavelength is well described by Alexander's theory.

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Polarization and pitch dependence of cholesteric blue-phase structures

Abstract

Phys. Lett.

Sov. Phys. JETP

Sov. Phys. JETP

Phys. Rev. Lett.

Z. Naturforsch.